<?xml version="1.0" encoding="UTF-8"?>
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="la" lang="la"
    xmlns:epub="http://www.idpf.org/2007/ops">
    <head>
        <title>Data Navigation Document</title>
    </head>
    <body>
        <nav epub:type="region-based">
            <h1>title</h1><!-- Invalid -->
            <ol>
                <li>
                    <a href="page1.xhtml#xywh=percent:5,5,15,15"></a>
                </li>
                <li>
                    <a href="page1.xhtml#xywh=percent:5,5,15,15">
                        <meta property="ahl:character-name" content="Sandman"/>
                    </a>
                </li>
                <li>
                    <a href="page1.xhtml#xywh=percent:5,5,15,15"><b>Hello</b></a><!--Warning-->
                </li>
                <li>Empty</li><!-- Invalid -->
                <li>
                    <span>
                        <a href="page1.xhtml#xywh=percent:5,5,15,15"></a>
                        <a href="page2.xhtml#xywh=percent:5,5,15,15"></a>
                    </span>
                </li>
                <li>
                    <span><!--Invalid-->
                        <a href="page1.xhtml#xywh=percent:5,5,15,15"></a>
                    </span>
                </li>
                <li>
                    <span><!--Invalid-->
                        Hello
                    </span>
                </li>
                <li>
                    <a href="page1.xhtml#xywh=percent:5,5,15,15"></a>
                    <a href="page1.xhtml#xywh=percent:5,5,15,15"></a><!-- Invalid -->
                </li>
                <li>
                    <a href="page1.xhtml#xywh=percent:5,5,15,15"></a>
                    <ol>
                        <li>
                            <a href="page1.xhtml#xywh=percent:30,30,20,25"></a>
                        </li>
                        <li>
                            <a href="page1.xhtml#xywh=percent:35,60,20,25"></a>
                        </li>
                    </ol>
                </li>
                <li>
                    <a href="page1.xhtml#xywh=percent:5,5,15,15"></a>
                    <ol>
                        <li>
                            <a href="page1.xhtml#xywh=percent:30,30,20,25"></a>
                        </li>
                        <li>
                            <a href="page1.xhtml#xywh=percent:35,60,20,25"></a>
                        </li>
                    </ol>
                    <ol><!--Invalid-->
                        <li>
                            <a href="page1.xhtml#xywh=percent:30,30,20,25"></a>
                        </li>
                        <li>
                            <a href="page1.xhtml#xywh=percent:35,60,20,25"></a>
                        </li>
                    </ol>
                </li>
                <li>
                    <ol><!-- Invalid -->
                        <li>
                            <a href="page1.xhtml#xywh=percent:30,30,20,25"></a>
                        </li>
                        <li>
                            <a href="page1.xhtml#xywh=percent:35,60,20,25"></a>
                        </li>
                    </ol>
                </li>
            </ol>
        </nav>
    </body>
</html>
